Dust-guard.



Patented Aug. 6, |901. H. B. BROWEH.

DUST GUARD.

(Application Bled Nov. 28, 1900.)

(No Model.)

w: N'onvus vzrzns cn. wcraumo.. WASHINGTON, D. c.

i UNITED STATES PATENT OFFICE.

HIRAM B. BROWER, QUAKER FARMS, CONNECTICUT, ASSIGNOR TO FRANK W. WOOD, OF NEW YORK, N. Y.

DUST-GUARD.

SPECIFICATION forming part of Letters Patent N 0.- 67 9,880, dated August 6, 1901.

Application filed November 28, 1900. Serial No. 38,006. (No model.)

T @ZZ whom t may concern..-

Be it known that I, HIRAM B. BROWER, a

citizen of the United States of America, and a resident of Quaker Farms,New Haven county, and State of Connecticut, have invented oertain new and useful Improvements in Dust- Guards for Car-Axles, of which the following is a specification.

My invention consists of an improved construction of dust-guards for car-axles in adjustable parts for taking up the wear, and particularly for being readily detachable for renewing worn-out or damaged parts, as hereinafter described, reference being made to the accompanying drawings, in which-v Figure l is a longitudinal vertical section of a car-axle box and a dust-guard thereon of my improved construction. Fig. 2 is a transverse section of the axle and axle-box on line 2 2 of Fig. l. Fig. 3 is a side elevation of my improved dust-guard, on an enlarged scale and with some parts broken out. Fig. fi is a transverse section on line 4 Li of Fig. 3.

In the first place I provide'A a sheet-metal case for holding the several parts together, said case comprising the plate a, having side flanges b b perpendicular to it, said case being of suitable dimensions to fit in the usual packing-recess c of the axle-box d and being centrally perforated for the axle e to pass through it, and the flanges b have inwardlyturned short iianges b2 for keepers to packing-pieces j', of wood or other suitable material, extending from top to bottom of the case inside of flanges b and being notched along the middle of their inner edges, as at g, to close on parts of the circumference of the axle-say about one-'fourth part each. These packing-pieces are placed in position by entering them between fianges b2, so as to lodge against the inside ofplate a, and sliding them outward each way respectively between said iangesbzand the plate. Compression-springs h are lodged in sockets t in the outer edges of these packing-pieces f and bearing against flanges b to maintain bearing contact with the axle. In this casecoiled springs are represented; but flat or other springs may be used, as desired. Between these packingpieces f other short pieces j are inserted, be- 5o 'ing tongue-and-grooved together with them. They are shaped on the inner ends 7o to iit the rest of the circumference of the axle. Being shorter than the diameter of the hole for the axle formed by the notches g 7c of the 55 several parts, these pieces j are applied by inserting them at the center space and sliding them outward. They also have springs h to maintain contact with the axle. The notches g are not at the beginning so deep as to per- 6o mit the tongue-and-groove joints to close, as indicated by the dotted linesl and solid lines n', and thus allow the side pieces considerable wear before being obstructed by the joints. When worn to such extent that the joints close up, the side pieces can be readily taken out and renewed. The other pieces j will wear indefinitely. Any equivalent lap-joint may be substituted for the tongue-and-groove joints. 7o

The side pieces fare rabbeted at the ends, as shown at m, where the ilanges b2 overlap them to the depth of the thickness of said flanges, so that the packing-pieces may till the case flush with the edges of flanges b, and thus entirely iill the packing-recess c in the axle-box.

It will be seen that the case is of a character that-may be constructed cheaply by stamping or pressing it in sheet metal, and thin and 8o light material may be used.

What I claim as my invention isl. In a dust-guard for car-axles, the combination of a case comprising a plate centrally perforated and provided with perpendicular side flanges, with keeper-flanges on two of the side flanges, side packing-pieces confined within said oase by said keeper-flanges, and intermediate packing-pieces confined by said side packing-pieces, said packing-pieces all 9o adapted to converge on the axle, and means for causing such convergence.

2. In a dust-guard for car-axles, the combination of a case comprising a plate centrally perforated for the axle and provided with perpendicular side ilanges, and keeper-flanges; side packing-pieces notched at the middle of one edge to bear against the axle and being confined at the ends by said Akeeperflamges', andsaid dust-guard adapted for` application ro short packing-pieces intermediate of Lhe Side to v@hep: u'zkirig-recess of the axle-box. packing-pieces and notched ab one end to Signed at Seymour, Connecticut, this 26th bemagainst the axle, and being confined by vday of Oober', 1900.

5 lap-joints with the side pieces, said several.

packing-pieces adapted for converging move- HIRAM VB BROWER ment. against the axle, and springs intermediate of said4 paoking-pieees and the case- Hangesfto cause said converging movement,

Witnesses:

C. S. BoIEs, RAYMOND R. HEALEY. 

